2004
DOI: 10.1023/b:phot.0000040567.42444.c2
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Peanut Photosynthesis Under Drought and Re-Watering

Abstract: The photosynthetic response of three Arachis hypogaea L. cultivars grown for two months was measured under water available conditions, severe water stress, and 24, 72, and 93 h following re-watering. At the end of the drying cycle, all the cultivars reached dehydration, relative water content (RWC) ranging between 40 and 50 %. During dehydration, leaf stomatal conductance (g s ), transpiration rate (E), and net photosynthetic rate (P N ) decreased more in cvs. 57-422 and GC 8-35 than in 73-30. Instantaneous w… Show more

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Cited by 24 publications
(15 citation statements)
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“…Inconsistent effects of these environmental stresses on physiological depression have been reported in previous studies (e.g. Bhagsari et al, 1976;Nautiyal et al, 1995;review by Reddy et al, 2003;Lauriano et al, 2004). Drought stress also alters the development of leaf area and changes the plant physiology.…”
Section: Introductionmentioning
confidence: 61%
See 1 more Smart Citation
“…Inconsistent effects of these environmental stresses on physiological depression have been reported in previous studies (e.g. Bhagsari et al, 1976;Nautiyal et al, 1995;review by Reddy et al, 2003;Lauriano et al, 2004). Drought stress also alters the development of leaf area and changes the plant physiology.…”
Section: Introductionmentioning
confidence: 61%
“…clamp-on leaf chambers, (Nautiyal et al, 1995;Bhagsari et al, 1976;Lauriano et al, 2004). There is still a lack of information on a continuous basis on the effect of drought stress on carbon exchange at the canopy scale.…”
Section: Introductionmentioning
confidence: 99%
“…The leaf RWC [RWC (%) = (FW – DW/TW – DW) × 100] was determined as in Lauriano et al . (), using ten leaf discs (each 0.5 cm 2 ) punched from the same leaves used for water potential determinations. The fresh weight (FW) was determined immediately after cutting the discs, turgid weight (TW) after overnight rehydration of the discs in a humid chamber at room temperature ( ca .…”
Section: Methodsmentioning
confidence: 99%
“…Usually a significant reduction of photosynthesis of plants under drought stress is detected (Sharkey and Seemann 1989, Lauriano et al 2004, Tezara et al 2005. The reduction of net photosynthetic rate (P N ) of a plant subjected to drought is considered a result of stomatal closure (Sharkey and Seemann 1989, Lal et al 1996, Sánchez-Rodríguez et al 1999) and metabolic impairment (Boyer 1976, Lawlor andCornic 2002).…”
Section: --mentioning
confidence: 99%